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Vassilis Dimopoulos, George Kalkanis

Science, Technology and Environment Laboratory, Pedagogical Department P.E., University of Athens, Greece. Hands-on spectrum lines – Introducing microscopic quantum explanations of the emitted photons to non-physics major’s students. Vassilis Dimopoulos, George Kalkanis. The Contents.

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Vassilis Dimopoulos, George Kalkanis

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  1. Science, Technology and Environment Laboratory, Pedagogical Department P.E., University of Athens, Greece Hands-on spectrum lines – Introducing microscopic quantum explanations of the emitted photons to non-physics major’s students Vassilis Dimopoulos, George Kalkanis

  2. The Contents duality of light/electron mechanic waves spectrum early models of atom quantum model for the atom of hydrogen

  3. A spectroscope is used in order to observe the continuous and linear spectra of various lights. Continuous spectrum Emission line spectrum The line spectra serves as a key to the structure of the atom, since any atomic theory must be able to explain why atoms emit light of discrete wavelengths and should be able to predict what these wavelengths are.

  4. ψ(r, θ, φ) = R(r) Θ(θ) Φ(φ) Some of the wave functions for the atom of Hydrogen: Back

  5. The wavefunction cannot been pictured The ψ2is a real number and gives the probability per unit volume that the particle will be found at any given point. The ψ2 is called the probability density (Serway, 1986) In a dot’s representation the value of ψ2 is higher when the density of the dots is high The probability densityis also called electronic densityor electronic cloud Back

  6. We can use the radial probability distribution in order to calculate the probability of finding the electron within the area x < r < y (Serway, 1986). Having calculated the probability we converse this number to the frequency of finding the electron in different areas for each state. Back

  7. The probability of finding a sphere / unit of surface increases If we move on a circle the higher probability of finding a sphere is on a circle of a specific radius

  8. The representation of ψ2is different to the representation of P(r) Back

  9. The representation of ψ2is different to the representation of P(r) Back

  10. The representation of ψ2is different to the representation of P(r) Back

  11. Emphasis is on the microscopic explanation of the spectrum of hydrogen

  12. An energy diagram is used in order to confront that a spectral linecan be created only by transitions between two discrete energylevels

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